FROM HERE TO ETERNAL

 Eternal battles among the Bat-family, starting with BATMAN ETERNAL  #4.

BE #9 then has the Big Bat throw down with the 2.0 version of Julia Pennyworth (aka "daughter of Alfred the Butler").

And then BE #19 gives a brainwashed Barbara Batgirl the chance to beat on a former Bat-sibling, Red Hood, aka "Robin II." Some romantic possibilities are suggested, given that in this story Dick Grayson is supposedly dead and gone.

The story "Lioness" in #23 introduces Rex Calabrese as the father of Catwoman, just so she can punch him out.

And in "Broken Mirrors" (#26), Spoiler resolves her daddy issues with Cluemaster the same way.